One of Pennsylvania's three original counties, Bucks County was founded by English Quaker William Penn, who built his estate, Pennsbury Manor, on the Delaware River in Falls township. The county, named for Buckinghamshire, England, is located in southeastern Pennsylvania, bordered to the east by New Jersey (the Delaware River constituting the boundary).
"Bucks." Encyclopędia Britannica from Encyclopędia Britannica Premium Service. <http://www.britannica.com/eb/article-9000612> [Accessed March 12, 2006].